package com.chinasofti.Demo03;

public class Fu {
    int num = 10;
}
class  Zi extends Fu{

    public void show(){
        int num =30;
        System.out.println(num);
    }
    int num = 20;
}
class Demo04 {
    public static void main(String[] args) {
        Zi zi= new Zi();
        zi.show();
    }
}